Solano County, CA interconnection queue
7 interconnection applications are pending in Solano County, CA, requesting 1.4 GW of new generating capacity, as of 15 August 2026. 4 projects have been built here and 30 have been withdrawn since 2002.
Source: interconnection queues published by CAISO. Parsed and normalised by Watt Street. Data as of 15 August 2026. A queued project is a request, not a commitment.
What is waiting in Solano County, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Battery | 4 | 1.2 GW |
| Hybrid | 2 | 116 MW |
| Wind | 1 | 91 MW |
Outcomes of every application filed here
| Outcome | Projects | Capacity | Share |
|---|---|---|---|
| Built | 4 | 628 MW | 9.8% |
| Still pending | 7 | 1.4 GW | 17.1% |
| Withdrawn | 30 | 7.2 GW | 73.2% |
| Suspended | 0 | — | 0.0% |
Withdrawal is the ordinary outcome of an interconnection application nationally, not a sign of a problem in this county. Most withdrawals are a developer testing a site and moving on.
The largest projects on file
| Project | Fuel | Capacity | Status | Filed | Queue |
|---|---|---|---|---|---|
| Withdrawn project | Battery | 900 MW | withdrawn | 2020-04 | CAISO |
| Withdrawn project | Gas | 730 MW | withdrawn | 2008-06 | CAISO |
| Withdrawn project | Battery | 700 MW | withdrawn | 2021-04 | CAISO |
| Withdrawn project | Gas | 630 MW | withdrawn | 2007-11 | CAISO |
| Withdrawn project | Gas | 575 MW | withdrawn | 2007-09 | CAISO |
| Withdrawn project | Wind | 500 MW | withdrawn | 2007-02 | CAISO |
| TOLENAS | Battery | 400 MW | active | 2021-04 | CAISO |
| CORBY 2 | Battery | 400 MW | active | 2021-04 | CAISO |
| Withdrawn project | Battery | 400 MW | withdrawn | 2021-04 | CAISO |
| Withdrawn project | Gas | 391 MW | withdrawn | 2007-10 | CAISO |
| Withdrawn project | Gas | 390 MW | withdrawn | 2008-05 | CAISO |
| Withdrawn project | Hybrid | 350 MW | withdrawn | 2019-04 | CAISO |
| CORBY | Battery | 300 MW | active | 2016-05 | CAISO |
| Withdrawn project | Wind | 250 MW | withdrawn | 2011-03 | CAISO |
| SHILOH III | Wind | 200 MW | completed | 2004-11 | CAISO |
How this county ranks
Solano County ranks #272 of 1,607 US counties by capacity currently queued, and #15 of 42 in California.
Other California counties in the queue
| County | Pending | Capacity queued |
|---|---|---|
| Los Angeles County | 33 | 15.0 GW |
| Kern County | 51 | 13.8 GW |
| Riverside County | 23 | 8.4 GW |
| San Bernardino County | 19 | 7.3 GW |
| Imperial County | 35 | 6.7 GW |
| Fresno County | 28 | 6.5 GW |
| Sacramento County | 16 | 3.6 GW |
| Kings County | 8 | 2.5 GW |
Go deeper on Solano County
The interactive map plots every one of these applications, and a generated county report puts them in a sourced PDF with the date each figure was true on every page.
Open Solano County on the map County reports All of California